What are Null, Undefined, and Unknown Types in TypeScript?

What are Null, Undefined, and Unknown Types in TypeScript?

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Are You Using Null And Undefined Wrong?
Are You Using Null And Undefined Wrong?
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Are You Using Null And Undefined Wrong?

Are You Using Null And Undefined Wrong?
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Null vs Undefined - which one should you use in JS?
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Understanding the "unknown" Type in TypeScript - Unknown vs Any Type in TypeScript
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TypeScript Tutorial | Data Types : Null & Undefined
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TypeScript Unknown Type Explained With Examples